Sadly, I know our issues aren't seatbelt related. I could go on but all of you have already heard the excuses. I could enforce seatbelt use on my end but when you don't have someone that "leads by example" and doesn't enforce the basics................you get the picture.

I know bouncing in and out of trailers during loading/unloading causes some serious compression of the spine and back muscles, I'm just trying to find some sort of either scientific information or industry-lead studies to confirm.

Thanks for the replies so far.